| Design and experiment of automatic depth setting device based on five\|bar transplanting mechanism |
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| DOI：10.7606/j.issn.1000-7601.2021.03.29 |
| Key Words: transplanter profiling device transplanting depth round soil\|bin test bed parameter optimization |
| Author Name | Affiliation | | HE Tengfei | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China | | LI Hui | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China | | WANG Yongshui | Technician Institute of Jinan, Ji’nan, Shandong 250100， China | | SHI Song | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China | | ZHOU Jilei | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China | | ZHANG Rongfang | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China | | JIAN Shichun | Shandong Academy of Agricultural Machinery Sciences, Ji’nan, Shandong 250100, China |
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| Abstract: |
| Aiming at solving the problem of low stability of planting depth control of existing transplanters in undulating ridge surface operation and realizing the independent active profiling for each row of planters, this paper uses the method of planter profiling to design an automatic precise depth determination and profiling device, which applied the program machine controller (PMC) as the core. Through theoretical analysis, the key structure and parameters, such as torque and lifting speed, the automatic depth setting and profiling device was determined, and a self\|setting depth transplanting test\|bed was designed. Using the orthogonal test optimization method, the relationship between the working speed, lifting speed, transplanting plant spacing parameters, and the qualified rate of planting depth was studied. Through the Box\|Benhnken combination test, the factors affecting the qualified rate of planting depth were transplanting plant distance > lifting speed > operation speed. The optimum parameter combination under the maximum qualified rate of planting depth was found under the combination of operating speed of 180 mm·s-1, lifting speed of 142 mm·s-1, and transplanting plant spacing of 195 mm·s-1. The bench test results showed that the average qualified rate of planting depth was 91.9% after using self\|setting depth profiling device, which was of practical application value in the field. |
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